Difference between revisions of "Meeting 2022 03 9"

From Hall A Wiki
Jump to: navigation, search
(Update on UVa GEM layers for GEn-RP (Anu, John, Thir))
(Update on UVa GEM layers for GEn-RP (Anu, John, Thir))
 
(3 intermediate revisions by 2 users not shown)
Line 10: Line 10:
  
 
===  Update on BB GEMs(Sean, Ezekiel, Holly, Anu) ===
 
===  Update on BB GEMs(Sean, Ezekiel, Holly, Anu) ===
*  
+
* We cannot use pedestal plots as indicators of APVs that are disconnected (see email).
 +
* [https://sbs.jlab.org/DocDB/0001/000167/003/Neg_pulse_tracking_3_7_22.pdf Negative signal tracking study]
 +
** HALOG with all plots - https://logbooks.jlab.org/entry/3986717
  
 
=== Update on UVa GEM layers for GEn-RP (Anu, John, Thir) ===
 
=== Update on UVa GEM layers for GEn-RP (Anu, John, Thir) ===
 +
*Still having issues with "gaps" or "dead zones" on inline layers
 +
**Possible trigger issues?? Need to step through the system and scope/check It out
 +
**Need to get as many GEMs/APVs up as possible to rule out any effects due to tracking.
 +
*Connection issues with APVs on Inline Layer 3 - G3
 +
**We slid the layer out and re-attached/assessed the connection of the 12-slot
 +
**Replaced the APV on Inline Layer 4 G0 12-slot. Inline Layer 3 and 4 are on the same frame.
 +
 +
 
*[https://hallaweb.jlab.org/wiki/images/2/28/EEL_125_GEM_DAQ_updates.pdf EEL 125 GEM DAQ updates]
 
*[https://hallaweb.jlab.org/wiki/images/2/28/EEL_125_GEM_DAQ_updates.pdf EEL 125 GEM DAQ updates]
  
Line 18: Line 28:
 
* HV divider upgrade for INFN GEMs
 
* HV divider upgrade for INFN GEMs
 
* [https://hallaweb.jlab.org/wiki/images/6/60/Parallel_divider_first-test.pdf First test of parallel divider]
 
* [https://hallaweb.jlab.org/wiki/images/6/60/Parallel_divider_first-test.pdf First test of parallel divider]
 +
*[https://hallaweb.jlab.org/wiki/index.php/File:cluster_1943.pdf Cosmic Run 1943]
 +
*[https://hallaweb.jlab.org/wiki/index.php/File:cluster_1974.pdf Cosmic Run 1974]
  
 
=== DAQ updates (Ben, Bryan, Alex) ===
 
=== DAQ updates (Ben, Bryan, Alex) ===

Latest revision as of 10:32, 16 March 2022

GMn GEM commissioning Meetings: WEDNESDAY 10:30am - 11:30am

Link to all previous meetings: GMn GEM Commissioning Meeting

Please use sbs_gems mailing list for plots/communications and HALOG entries relevant to GEMs!


Near term work plan (all)

  • Installation of HV dividers on BB: April 18 for 3 weeks, upgraded dividers on back tracker and active on front 3 layers

Update on BB GEMs(Sean, Ezekiel, Holly, Anu)

Update on UVa GEM layers for GEn-RP (Anu, John, Thir)

  • Still having issues with "gaps" or "dead zones" on inline layers
    • Possible trigger issues?? Need to step through the system and scope/check It out
    • Need to get as many GEMs/APVs up as possible to rule out any effects due to tracking.
  • Connection issues with APVs on Inline Layer 3 - G3
    • We slid the layer out and re-attached/assessed the connection of the 12-slot
    • Replaced the APV on Inline Layer 4 G0 12-slot. Inline Layer 3 and 4 are on the same frame.


Update on INFN GEM layers for GEn-RP (Ezekiel, Holly, Evaristo)

DAQ updates (Ben, Bryan, Alex)

  • schematic of setup?
  • FIR filter?
  • Update on: need 2 DC working in Hall A